53501525503 has 16 divisors (see below), whose sum is σ = 57702857760. Its totient is φ = 49420112896.

The previous prime is 53501525443. The next prime is 53501525507. The reversal of 53501525503 is 30552510535.

It is a cyclic number.

It is not a de Polignac number, because 53501525503 - 2¹⁷ = 53501394431 is a prime.

It is a super-2 number, since 2×53501525503² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53501525507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575625 + ... + 662077.

It is an arithmetic number, because the mean of its divisors is an integer number (3606428610).

Almost surely, 2^53501525503 is an apocalyptic number.

53501525503 is a deficient number, since it is larger than the sum of its proper divisors (4201332257).

53501525503 is a wasteful number, since it uses less digits than its factorization.

53501525503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87146.

The product of its (nonzero) digits is 56250, while the sum is 34.

The spelling of 53501525503 in words is "fifty-three billion, five hundred one million, five hundred twenty-five thousand, five hundred three".